Item description:

Break into 30 Depots

If you're new to the game :

A "Depot" is a building or room that you need to activate by either stepping on square floor tiles ( usually 1 to 4 ) or you need to active ( 1-4 ) Honeycomb looking switches. You don't need to collect the chest/s. D-Up to highlight switches in/on buildings.

Resign both & Load up.

Choose any outdoor mission from the Avengers Initiative. IE: A forrest or city map that will have multiple objectives. Head to each one to find a "chest" icon. When you locate a chest in a building, Activate the switches to gain entry. The door will turn green. And trophy will pop.